CBS News: President Obama did not surprise many people with his choice for the Supreme Court, Solicitor General Elena Kagan, but that does not mean Kagan will face an easy route to the bench. "Mr. Obama is hoping to quickly fill the vacancy left by retiring Justice John Paul Stevens, and the moderate-liberal Kagan is seen as a relatively uncontroversial choice. But as CBS News Chief Legal Correspondent Jan Crawford said on Washington Unplugged Monday, there are several factors that may give Kagan problems when she faces a Senate confirmation hearing.